UPDATE: The National Weather Service has extended its winter weather advisory in effect for southwestern Pennsylvania until 1 p.m. on Sunday.

An accumulation of up to another inch of snow is forecast as snow showers continue through the morning, the weather service stated in an 8:56 a.m. announcement. Blowing snow will reduce visibility and create hazardous travel conditions.

You might want to duck out of work a little early today, as a winter weather advisory is in effect for Allegheny County this weekend.

According to the National Weather Service, the Pittsburgh area is under an advisory from 6 p.m. on Friday night through 6 a.m. on Sunday morning.

The area is expected to receive a total of 2 to 4 inches of snow during that time. The first snowfall on Friday is expected to make untreated surfaces slippery and covered with 1 inch of accumulation.

Friday night's low temperature will be 25 degrees.

The second snowfall—expected to occur early on Saturday and lasting into Saturday night—could add up to 3 more inches of accumulation and be accompanied by gusty winds. Winds could gust as fast as 28 mph.

Wind chills of close to 0 degrees are expected by Saturday night.

There will be a chance for snow showers on Sunday before 5 p.m. Sunday's high is predicted at 27 degrees, with the low at 16.

Don't forget to upload snow photos—good and bad—to Your Neighborhood Gallery! If you have any updates on road conditions, please send an email to baldwin-whitehall@patch.com or leave those updates in the comments section below. We want to help keep everyone updated and safe.

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